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2 069 680

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C1

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IPC

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Application

94027825/04, 1994-07-26

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Actual filing date

1994-07-26

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Published

1996-11-27

(72)

Inventor

Smrchek V.A.Khromov A.V.Dutova T.Ja.Zotova O.A.Kazankov M.V.

(73)

Holder

Moskovskoe Nauchno-Proizvodstvennoe Ob"Edinenie

METHOD FOR PRODUCTION OF OLIGOMER DYES Russian patent published in 1996 - IPC

Abstract RU 2069680 C1

FIELD: production of oligomer dyes. SUBSTANCE: method is carried out by interaction of aromatic epoxy resins with monobasic carboxylic acids and with dyes, mass ratio of said ingredients being 1:0.06-0.20:0.08-0.37 respectively. Molecular weight of mentioned above epoxy resins is 600-4500 g/mol. Mentioned above monobasic carboxylic acids are used as modifying agents and said dyes contain carboxyl and/or sulfamide groups. EFFECT: improves efficiency of the method. 1 tbl

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RU 2 069 680 C1

Authors

Smrchek V.A.

Khromov A.V.

Dutova T.Ja.

Zotova O.A.

Kazankov M.V.

Dates

1996-11-27—Published

1994-07-26—Filed

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